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Man, the Unknown
Winner of the Nobel Prize in Physiology and Medicine, Dr. Alexis Carrel, one of the greatest scientists who ever lived, tells us what man is in terms of mental and physical composition and how he can become the true master of his universe if he learns to use his incredible God-given powers wisely.
"The wisest, deepest, and most valuable book I have come across in American literature of our century."
- Will Durant, author of History of Philosophy
"Meaningful, candid, courageous, and genuinely sincere."
-New York Times
"Provocative and thought-provoking."
-Saturday Review
"A work of genius...the breadth, the variety of perspectives, the courageous disregard for currently accepted beliefs that characterize great books."
-New York Herald Tribune
"The wisest, deepest, and most valuable book I have come across in American literature of our century."
- Will Durant, author of History of Philosophy
"Meaningful, candid, courageous, and genuinely sincere."
-New York Times
"Provocative and thought-provoking."
-Saturday Review
"A work of genius...the breadth, the variety of perspectives, the courageous disregard for currently accepted beliefs that characterize great books."
-New York Herald Tribune
307 pages, Kindle Edition
Published August 29, 2022
20 people are currently reading
12 people want to read
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Displaying 1 - 2 of 2 reviews
January 15, 2026
This book stands as one of the most intellectually provocative and morally troubling works of early twentieth-century scientific literature. This book represents an ambitious attempt to synthesize knowledge across biology, medicine, psychology, and sociology into a comprehensive understanding of human nature. Yet what emerges is not merely a scientific treatise but a deeply ideological manifesto that reveals as much about the prejudices and anxieties of its era as it does about human biology. Author writes with the confidence of someone who believes scientific authority grants him license to pronounce on matters far beyond his expertise, and this overreach becomes the book's defining characteristic.
In Man, the Unknown, Alexis Carrel advanced a comprehensive and deeply authoritarian program for reorganizing human society along what he believed were biological lines. He argued that individuals possessing “superior” physical, intellectual, or moral qualities should be actively encouraged to reproduce, while those he labeled as inferior which, including people with mental illness, criminal tendencies, or low intelligence should be prevented from having children. This belief led him to endorse forced sterilization for entire categories of people, which he justified as a rational method of preventing the continued propagation of what he considered genetic defects. Carrel extended this logic to criminal justice, proposing that serious or habitual criminals should be eliminated through what he described as “humane” means, explicitly suggesting the use of ether gas to end their lives. He rejected democracy outright, dismissing equality as a dangerous illusion, and instead advocated for rule by a scientifically trained elite that would manage society and human reproduction according to biological principles. His worldview also rested on the claim that human races were biologically distinct and hierarchically ordered, with these differences being fixed and immutable, and he insisted that social and political systems should reflect this supposed natural hierarchy. Education, in his view, should be strictly stratified, with advanced intellectual training reserved only for those deemed naturally superior, while others would be educated solely for roles suited to their presumed biological capacities. Those he considered mentally disabled or socially “useless” were to be isolated in institutions or prevented from reproducing, further reinforcing his belief that human value could be scientifically ranked and managed.
In contemporary understanding, Carrel’s recommendations are regarded as both scientifically invalid and morally indefensible, representing fundamental violations of human rights and serving as enduring warnings about the dangers of combining scientific authority with ideological certainty and unchecked power.
While the book has historical and cautionary value as a document showing how scientific authority can be misused, it fails fundamentally as a guide to understanding human nature or organizing society.
This is ultimately a book more valuable for what it teaches us about the dangers of unchecked expertise and ideological overreach than for any positive contribution to human knowledge. It deserves to be read critically and contextually, but not recommended, celebrated, or treated as wisdom. The rating reflects its status as a historically significant cautionary tale rather than a work of enduring intellectual merit.
In Man, the Unknown, Alexis Carrel advanced a comprehensive and deeply authoritarian program for reorganizing human society along what he believed were biological lines. He argued that individuals possessing “superior” physical, intellectual, or moral qualities should be actively encouraged to reproduce, while those he labeled as inferior which, including people with mental illness, criminal tendencies, or low intelligence should be prevented from having children. This belief led him to endorse forced sterilization for entire categories of people, which he justified as a rational method of preventing the continued propagation of what he considered genetic defects. Carrel extended this logic to criminal justice, proposing that serious or habitual criminals should be eliminated through what he described as “humane” means, explicitly suggesting the use of ether gas to end their lives. He rejected democracy outright, dismissing equality as a dangerous illusion, and instead advocated for rule by a scientifically trained elite that would manage society and human reproduction according to biological principles. His worldview also rested on the claim that human races were biologically distinct and hierarchically ordered, with these differences being fixed and immutable, and he insisted that social and political systems should reflect this supposed natural hierarchy. Education, in his view, should be strictly stratified, with advanced intellectual training reserved only for those deemed naturally superior, while others would be educated solely for roles suited to their presumed biological capacities. Those he considered mentally disabled or socially “useless” were to be isolated in institutions or prevented from reproducing, further reinforcing his belief that human value could be scientifically ranked and managed.
In contemporary understanding, Carrel’s recommendations are regarded as both scientifically invalid and morally indefensible, representing fundamental violations of human rights and serving as enduring warnings about the dangers of combining scientific authority with ideological certainty and unchecked power.
While the book has historical and cautionary value as a document showing how scientific authority can be misused, it fails fundamentally as a guide to understanding human nature or organizing society.
This is ultimately a book more valuable for what it teaches us about the dangers of unchecked expertise and ideological overreach than for any positive contribution to human knowledge. It deserves to be read critically and contextually, but not recommended, celebrated, or treated as wisdom. The rating reflects its status as a historically significant cautionary tale rather than a work of enduring intellectual merit.
September 6, 2024
Glad I (a woman of color) wasn't born during that time
Displaying 1 - 2 of 2 reviews